Order before 3PM CST — ships same day.
Standard delivery 2-5 business days. Express options at checkout.
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This OEM Carrier contactor is the factory-spec replacement for the HA1AJX036000AAAA 3-ton air conditioner. The contactor is the high-voltage relay that energizes the compressor and condenser fan motor whenever your thermostat calls for cooling. Pitted, burned, or chattering contacts are one of the most common causes of an outdoor unit that won't start or buzzes without running. This direct-fit contactor matches the original coil voltage, pole configuration, and amperage rating, so it installs without rewiring. Installation is rated easy for a qualified tech: disconnect power, photograph the wiring, transfer leads one at a time to the new contactor, and remount. It's smart preventive maintenance to replace a worn contactor along with the run capacitor. Built to Carrier's original specification for dependable, arc-resistant switching over years of cycles. In stock and ships same-day on orders placed before 3PM CST, so you avoid a long no-cool stretch. Contact our HVAC parts experts if you'd like help confirming pole count and coil voltage for your unit.
This part is compatible with Carrier model HA1AJX036000AAAA.
Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.